Finding the Fourth Proportional to 687,852.75, 949,236.80 and 386,046.75
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Solution
The fourth proportional to 687,852.75, 949,236.80 and 386,046.75 is: 532,744.52
Step by Step Solution
- Step 1: Write the proportion equation
687,852.75 : 949,236.80 = 386,046.75 : x - Step 2: Convert to fraction form
687,852.75/949,236.80 = 386,046.75/x - Step 3: Cross multiply
687,852.75x = 949,236.80 × 386,046.75 - Step 4: Simplify right side
687,852.75x = 366,449,779,690.17 - Step 5: Solve for x
x = 366,449,779,690.17/687,852.75 - Step 6: Final answer
x = 532,744.52
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.